import java.util.Scanner;
import java.util.Random;
public class Jisuan
public static void main(String[]args)
  Scanner r = new Scanner(System.in);
  Randoe g = new Random();
  int choose,sum;
  switch(choose)
      case 1:
           int a,b,c,d,e,f,g;
              a = g.nextInt(101);
              b = g.nextInt(101);
              c = g.nextInt(101);
              d = g.nextInt(101);
              e = a*d+c*d;
              f = b*d;
           System.out.println(a + "/" + b + "+" + c"/"+ d "=");
           g = g.nextInt(101);
           if(g==e/f){
             System.out.println("ture");
             sum = sum + 1;
                     }
           else
             System.out.println("wrong");
      case 2:
           int h,i,g,k,l,m,n,o;                          
        

